The official hotel of the National Hydropower Association's Waterpower Week in Washington is the Capital Hilton: Capital Hilton | 1001 16th Street, NW | Washington DC, 20036

It is recommended you book directly through the Capital Hilton for your reservations.  

The hotel rate is $345.00 Single/Double occupancy.  The Rate cut off date is March 23, 2016.  Rates cannot be guaranteed after the block is full or the cut-off date.


HOUSING WARNING: If you are contacted by any other vendor – they are not affiliated with the conference or organizers. For additional information on housing scams, CLICK HERE.

Capital Hilton, Washington D.C.

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Unauthorized Housing Companies Contacting Exhibitors & Attendees

It has come to our attention that unauthorized housing companies have been contacting National Hydropower Association Annual Conference, IMREC and METS sponsors, tabletop participants and attendees via email and phone and in general, misrepresenting themselves as an official housing vendor for the National Hydropower Association Conference, International Marine Renewable Energy Conference (IMREC) and Marine Energy Technology Symposium (METS).

The only official housing for the three co-located events is through Capital Hilton.  All other companies do not have any affiliation with National Hydropower Association.  We highly caution you from engaging unauthorized companies because if/when issues arise, National Hydropower Association management does not have the ability to provide assistance in solving them. 

Please report any unauthorized housing and travel solicitations to Lisa Gasaway at

Traveling to the United States

If you are traveling to the NHA Annual Conference, International Marine Renewable Energy Conference (IMREC) or the Marine Energy Technology Symposium (METS) from outside the U.S., we suggest you build in ample time before your planned travel date to obtain necessary documentation.  For information on requirements for entering the United States, please visit:

Please note that residents of certain countries will need a non-immigrant B-1 visa to be authorized for a temporary business visit.  Residents of countries for which the visa requirement is waived will need to obtain a travel authorization via the Electronic System for Travel Authorization. For more information, please visit:


To receive your invitation letter you must register and pay the registration fee in full for the NHA Annual Conference and/or IMREC/METS. Letters of invitation can be requested by printing out the Letter of Invitation Application posted below. The deadline for Letters of Invitation requests is 28 March 2016. Please complete the application in full and submit the form to the Registration Department as indicated on the form.

Letter of Invitation Application

The process of receiving a Letter of Invitation involves:

1. Purchasing a registration.  (Registration open soon)

2. Complete and return a Letter of Invitation Application. Click Here to download the form now.

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